Home / 1,132,991.81-1,563,176.53-642,880.25

Finding the Fourth Proportional to 1,132,991.81, 1,563,176.53 and 642,880.25

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Solution

The fourth proportional to 1,132,991.81, 1,563,176.53 and 642,880.25 is: 886,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,991.81 : 1,563,176.53 = 642,880.25 : x
  2. Step 2: Convert to fraction form
    1,132,991.81/1,563,176.53 = 642,880.25/x
  3. Step 3: Cross multiply
    1,132,991.81x = 1,563,176.53 × 642,880.25
  4. Step 4: Simplify right side
    1,132,991.81x = 1,004,935,318,400.53
  5. Step 5: Solve for x
    x = 1,004,935,318,400.53/1,132,991.81
  6. Step 6: Final answer
    x = 886,974.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.